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Inactivation of Mycobacterium avium subsp. paratuberculosis in cow's milk by means of high hydrostatic pressure at mild temperatures |
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| Authors: | López-Pedemonte Tomás Sevilla Iker Garrido Joseba M Aduriz Gorka Guamis Buenaventura Juste Ramón A Roig-Sagués Artur X |
| Institution: | Centre Especial de Recerca Planta de Tecnologia dels Aliments, CeRTA, XiT, Departament de Ciència Animal i dels Aliments, Facultat de Veterinària, Universitat Autònoma de Barcelona, 08193 Bellaterra, Spain. |
| Abstract: | Two strains of Mycobacterium avium subsp. paratuberculosis (3644/02 and ATCC 19698) were inoculated (approximately 6 log CFU/ml) into sterilized milk to evaluate inactivation by high hydrostatic pressure. Reductions of M. avium subsp. paratuberculosis increased with pressure level. Significant differences were also found between M. avium subsp. paratuberculosis strains and between the media used. Average reductions of 4 log CFU/ml after treatment with 500 MPa are comparable to those caused by thermal treatments. |
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